CN110071740A - Reliably, non-maintaining RF hardware framework - Google Patents

Reliably, non-maintaining RF hardware framework Download PDF

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Publication number
CN110071740A
CN110071740A CN201910007992.3A CN201910007992A CN110071740A CN 110071740 A CN110071740 A CN 110071740A CN 201910007992 A CN201910007992 A CN 201910007992A CN 110071740 A CN110071740 A CN 110071740A
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China
Prior art keywords
signal
input
active
hardware
output
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CN201910007992.3A
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Chinese (zh)
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S·A·麦坎利斯
A·C·阿隆吉
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Boeing Co
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Boeing Co
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16Error detection or correction of the data by redundancy in hardware
    • G06F11/20Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2002Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where interconnections or communication control functionality are redundant
    • G06F11/2005Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where interconnections or communication control functionality are redundant using redundant communication controllers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52Circuit arrangements for protecting such amplifiers
    • H03F1/526Circuit arrangements for protecting such amplifiers protecting by using redundant amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189High frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/195High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02Transmitters
    • H04B1/04Circuits
    • H04B1/0483Transmitters with multiple parallel paths
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
    • H04B1/745Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus using by-passing or self-healing methods
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18515Transmission equipment in satellites or space-based relays
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F2200/00Indexing scheme relating to amplifiers
    • H03F2200/294Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/60Supervising unattended repeaters

Abstract

It is related to reliable, non-maintaining RF hardware framework.The redundancy structure for communication system is provided in particular, example redundancy structure includes: multiple active radio frequency RF hardware cells;One or more RF demultiplexers are configured as multiple RF input signals being attached to the multiple active RF hardware cell;And one or more RF signal combiner, it is configured as by the multiple active RF hardware cell, treated that RF signal is attached to multiple RF outgoing routes.One or more of RF demultiplexers are configured as making each RF input signal in the multiple RF input signal to be separated into multiple copies of RF input signal, and each copy in the multiple copy of RF input signal is supplied to the different active RF hardware cells in the multiple active RF hardware cell.One or more of RF signal combiners are configured as the multiple copy of RF input signal being combined in RF output signal.

Description

Reliably, non-maintaining RF hardware framework
Technical field
The disclosure relates generally to communication systems, and more particularly, to the redundancy structure for communication system.
Background technique
Many satellite communication systems are designed to work many years.In order to maintain reliability and extend satellite payload Working life, payload can be equipped be designed to it is spare in switching in signal path when active cell breaks down Or redundancy unit.For example, payload may include ten active low noise amplifiers and two spare low noise amplifications Device.When an active low noise amplifier in active low noise amplifier breaks down, the two spare low noise amplifications A spare low-noise amplifier in device can be cut in the signal path that the low-noise amplifier of failure has occurred.
It may will be related to opening to electromechanics in the signal path for the low-noise amplifier that failure has occurred in stand-by unit incision It closes and sends radio frequency (RF) order.For example, electric mechanical switch can be there are two position: in first position, electric mechanical switch can be incited somebody to action Active cell is linked to signal path;In second position, stand-by unit can be linked to signal path by electric mechanical switch.Such as Fruit active cell breaks down, then RF order can be sent to electric mechanical switch, switch is made to be converted to the second position.Send RF Order may be related to operator's intervention.
In addition, service disruption occurs when the active hardware cell of failure has occurred with the replacement of alternate hardware unit.Service Time of the span of the length of interruption when active hardware cell breaks down with for cutting and start alternate hardware unit simultaneously And it reinitializes between the service time used.Therefore, it is necessary to improve.
Summary of the invention
In one example, a kind of redundancy structure for communication system is described.The redundancy structure includes: multiple active Radio frequency (RF) hardware cell;One or more RF demultiplexers are configured as multiple RF input signals being attached to multiple Active RF hardware cell;And one or more RF signal combiner, being configured as will be by multiple active RF hardware cell RF signal after reason is attached to multiple RF outgoing routes.One or more of RF demultiplexers are configured as keeping multiple RF defeated Enter multiple copies that each RF input signal in signal is separated into RF input signal, and by the multiple of RF input signal Each copy in copy is supplied to the different active RF hardware cells in the multiple active RF hardware cell.For by institute State multiple active RF hardware cells treated each RF input signal in multiple RF input signals, one or more of RF Signal combiner is configured as the multiple copy of RF input signal being combined in RF output signal, and the multiple RF output signal is provided at the RF outgoing route corresponding to RF input signal in RF outgoing route.
In another example, a kind of redundancy structure for communication system is described.The redundancy structure includes: a series of defeated Inbound port;A series of output ports;Multiple active radio frequencies (RF) hardware cell of parallel arrangement;At least one RF Signal separator A series of input ports are connected to the multiple active RF hardware cell by device;And at least one RF signal combination The multiple active RF hardware cell is connected to a series of output ports by device.Redundancy structure is configured such that The RF input signal provided at any given input port in a series of input ports is separated into RF input signal Then multiple copies, the multiple copy are handled by the corresponding active RF hardware cell in the multiple active RF hardware cell, And after being processed, the multiple copy is combined into RF at the given output port in a series of output ports Output signal.
In another example, a kind of redundancy structure for communication system is described.The redundancy structure includes m input terminal Mouthful;M output port;N active radio frequency (RF) hardware cell of parallel arrangement;M × n input matrix inputs described m Port is connected to the n active RF hardware cells;And n × m output matrix, the n active RF hardware cells are connected It is connected to the m output port.Redundancy structure is configured such that any given input terminal in the m input port The RF input signal provided at mouthful is separated into n copy of RF input signal, and the n copy is then active by the n Corresponding active RF hardware cell processing in RF hardware cell, and after being processed, the n copy is defeated at the m RF output signal is combined at given output port in exit port.
Feature, function and advantage by discussion can be performed individually in the various examples, or be shown other It is combined in example, is referred to following description and accompanying drawings and obtains these exemplary further details.
Detailed description of the invention
The novel feature (being considered as feature) of illustrative example is illustrated in appended claim.However, tying When closing the detailed description for the illustrative example that attached drawing reads following disclosure, illustrative example and preferred use pattern, its Further object and explanation will be best understood by.
Fig. 1 and Fig. 2 illustrates a part of general communication satellite payload.
Fig. 3 and Fig. 4 illustrates the example redundancy structure for communication system according to example embodiment.
Fig. 5 illustrates another example redundancy structure for communication system according to example embodiment.
Fig. 6 A and Fig. 6 B illustrate another example redundancy structure for communication system according to example embodiment.
Fig. 7 illustrates another example redundancy structure for communication system according to example embodiment.
Fig. 8 illustrates example satellite communication system according to example embodiment.
Specific embodiment
Disclosed example is described more fully with below in reference to attached drawing, which illustrates some but not all disclosed Example.In fact, multiple and different examples can be provided and should not be construed as being limited to example described in this paper.Phase Instead, providing these examples makes the disclosure be comprehensive and complete, and the scope of the present disclosure is fully conveyed to ability The technical staff in domain.
Fig. 1 conceptually illustrates the example arrangement of the part of general communication satellite payload.As shown in Figure 1, communication Satellite payload may include the input redundancy annular that multiple input paths 104 are connected to multiple active hardware cells 106 Switch 102.Input redundancy ring switch 102 may include six switches, and each switch in this six switches can be located at mark Claim in position, top position or lower position.Originally, six switches for inputting redundancy ring switch 102 can be located at mark Claim in position, so that " input 1 " is linked to " active hardware 1 " by first switch S1, second switch S2 " will input path 2 " " active hardware 2 " is linked to, and so on.Further as shown in Figure 1, telecommunication satellite payload can also include having multiple Source hardware cell 106 is connected to the output redundancy ring switch 110 of multiple outgoing routes 112.
In operation, it when an active hardware cell in active hardware cell breaks down, moves up or down It inputs redundancy ring switch 102 and exports the corresponding switch of redundancy ring switch 110, to use alternate hardware unit substitution to occur The active hardware cell of failure.For example, as shown in Fig. 2, the switch of third switch S3 and the 4th of input redundancy ring switch 102 S4 is switched to lower position, so that " input 1 " is linked to " active hardware 4 " by third switch S3, and the 4th switch " input 4 " is linked to " alternate hardware 1 " by S4.In addition, the third switch S3 and the 4th switch S4 of input redundancy ring switch 110 It is switched to lower position, so that " active hardware 4 " is linked to " output 3 " by third switch S3, and the 4th switch S4 " alternate hardware 1 " is linked into " outgoing route 4 ".
When using redundancy ring switch, (the input redundancy ring switch 102 or output redundancy of such as Fig. 1 and Fig. 2 are annular Switch 110) when, the corresponding switch of redundancy ring switch is controlled using special command.Specifically, high by being sent to switch Voltage pulse is individually controlled corresponding switch, and pulse makes switch be converted to different positions.Therefore, when active hardware cell When breaking down, it may may require that operator intervenes.
In addition, the active hardware of failure has occurred with the replacement of alternate hardware unit when the switch of mobile redundancy ring switch When unit, service disruption occurs.For example, when using " alternate hardware 1 " replacement " active hardware 3 ", service " input 3 " with it is " defeated Service disruption occurs between 3 " and between " input 4 " and " exporting 4 " out.The length of service disruption, across active hardware list Time when member breaks down with for cut and start alternate hardware unit and reinitialize the service time used it Between.
Described herein is for providing the system of the redundancy to solve the above problems.As described herein, which allows One group of hardware cell is shared in one or more paths RF, without using Redundanter schalter and the associated phase for command switch Operator is closed to intervene.Equally, system can provide redundancy in case of a failure, not generate any service disruption.
For example, providing a kind of redundancy structure for communication system.The redundancy structure includes: multiple parallel arrangements Active RF hardware cell;It is configured as multiple input signals being attached to one or more RF letter of multiple active hardware cells Number separator;And one or more RF signal combiner.
One or more RF demultiplexers are configured as, and separate each RF input signal in multiple RF input signals Multiple active RF are supplied at multiple copies of RF input signal, and by each copy in multiple copies of RF input signal Different active RF hardware cells in hardware cell.Further, one or more RF signal combiners be configured as by by Treated that RF signal is attached to multiple RF outgoing routes for multiple active RF hardware cells.For by multiple active RF hardware cells Each RF input signal in multiple RF input signals that treated, one or more RF signal combiners are configured as RF is defeated The multiple copies for entering signal are combined in RF output signal, and correspond to RF input signal in multiple RF outgoing routes RF output signal is provided at RF outgoing route.
In some embodiments, the communication system that redundancy structure provides redundancy may is that the spacecraft communications such as satellite System.In other embodiments, communication system can be the communication system of aircraft.Redundancy structure described herein can be with Be: any kind of RF hardware that the interruption of high reliability and/or service attracts attention provides redundancy, such as communication gate or collection Route.
Advantageously, redundancy structure disclosed herein can be required than Conventional communication systems (such as Fig. 1 and shown in Fig. 2 Telecommunication satellite payload) less hardware, and it is complicated not as good as Conventional communication systems.For example, redundancy structure can reduce or Eliminate to for cutting alternate hardware unit switch and association quantity for controlling the order hardware and soft of these switches The use of part.In addition, redundancy structure can remove the needs to any redundant hardware such as alternate hardware unit from.As showing Example, redundancy structure can have there are four active hardware cell, and not have alternate hardware unit.However, providing same redundant water Flat Conventional communication systems can have four active hardware cells and two alternate hardware units.Therefore, redundancy structure will be hard The total quantity of part unit is reduced to four from six.
Further, the design of redundancy structure disclosed herein can realize calm degrade during breaking down. In the communication system with the redundancy structure configured according to mode disclosed herein, once event occurs for active hardware cell Barrier, communication system can work under calm degrading state.As described more fully below, event occurs for active hardware cell Barrier causes distributed signal to be decayed, rather than causes signal interruption.
The various other features of system and method are described below in reference to attached drawing.
Referring now to Fig. 3, the example redundancy structure 300 for communication system is illustrated.As shown in figure 3, redundancy structure 300 wraps Include m × n input network 302, n active RF hardware cells 304 and n × m output network 306.
M × n input network 302 is the input network for including m input and n output, wherein m is integer, and n is integer, And m is more than or equal to n.For example, n, which can be 2 and n, can be 2 or the integer greater than 2.Alternatively, n can be 4,8 or 16.Other examples are also possible.It is defeated that each input in m input can be attached to RF by corresponding RF input path 308 Enter signal.In one example, may exist m RF input signal, and each signal in RF input signal can pass through Mutually orthogonal m × n inputs network 302.Further, RF input signal can be in same band operation.For the ease of solution It releases, a RF input signal and a RF input path is illustrated only in Fig. 3.
Further, each output in n output could be attached to different in n active RF hardware cells 304 Active RF hardware cell.For example, the first output could be attached to the first active RF hardware cell, the second output could be attached to the Two active RF hardware cells, and so on.
In one example, m × n inputs network 302 and can be configured as each Signal separator in RF input signal N active RF are supplied at multiple copies of RF input signal, and by each copy in multiple copies of RF input signal Different active RF hardware cells in hardware cell.It is defeated to implement m × n that at least one RF separator (not shown) can be used Enter network 302.For example, may exist two RF input signals and two active RF hardware cells in a communications system, and m × N input network 302 can be 2 × 2 input networks.2 × 2 input networks the first RF input signal can be separated into: have with First power of the identical phase of phase of the first RF input signal reduces RF signal;With there is phase with the first RF input signal Second power of the different phase in position reduces RF signal.In addition, the 2nd RF input signal can be separated by 2 × 2 input networks: Third power with phase identical with the phase of the 2nd RF input signal reduces RF signal;Believe with having to input with the 2nd RF Number the 4th power of the different phase of phase reduce RF signal.Then 2 × 2 input networks can drop first and third power Low RF signal is supplied to the first active RF hardware cell, and by second and the 4th power reduce RF signal and be supplied to the second active RF Hardware cell.
In one example, n active RF hardware cells 304 can be n low-noise amplifier.More generally, n have Source RF hardware cell 304 can be the provided any kind of active hardware cell in communication system.
N × m output network 306 is the output network for including n input and m output.Each input in n input can With the different active RF hardware cells being attached in n active RF hardware cells.For example, the first input could be attached to first Active RF hardware cell, the second input could be attached to the second active RF hardware cell, and so on.Further, m output In each output could be attached to different RF outgoing routes.For the ease of explaining, illustrating only a RF output road in Fig. 3 Diameter.
In one example, n × m output network 306, which can be configured as, is combined to multiple copies of RF input signal In RF output signal, and RF output signal is provided at the RF outgoing route for corresponding to RF input signal.For example, having two In the communication system of a RF input signal, n × m output network 306 be can be configured as multiple pairs of the first RF output signal Originally it is combined in the first RF output signal, and the first RF output signal is supplied to the first RF outgoing route.Further, n × m output network 306, which can be configured as, is combined to multiple copies of the 2nd RF input signal in the 2nd RF output signal, and 2nd RF output signal is supplied to the 2nd RF outgoing route.It can phase by the RF output signal that n × m output network 306 provides It is mutually orthogonal.
As discussed above, redundancy structure 300 is configured such that any one in n active RF hardware cells A failure for giving active RF hardware cell causes distributed signal to be decayed, rather than causes signal interruption.For example, as schemed Shown in 4, when the second active RF hardware cell of n active RF hardware cells 304 breaks down, by the second active RF hardware list Treated that RF signal may be destroyed or the second active RF hardware cell may not export any signal for member.However, Since the RF input signal inputted at RF input path 308 is separated into multiple copies in RF input signal, so only The copy for being provided to the RF input signal of the second active RF hardware cell will receive the negative effect of failure;RF input signal Other copies still can be respectively processed by other active RF hardware cells.Therefore, it is provided on RF outgoing route 310 RF output signal exists while in attenuation state.Similarly, defeated corresponding to each RF in other RF input signals Enter the RF output signal of signal at corresponding RF outgoing route while in attenuation state, but remains on presence.In other words, superfluous Remaining framework 300 still can provide all RF output signals at the path RF, and without cutting any alternate hardware (such as Spare RF hardware cell) it can accomplish this point.In some cases, multiple failures can be tolerated.For example, redundancy frame Structure 300 is configured such that: giving active RF hardware cell in any one or more of n active RF hardware cells When breaking down, which provides all RF output signals still at RF outgoing route, hard without cutting spare RF Part unit.
In fact, the influence of the loss of one of them active RF hardware cell reduces as n increases.It is logical equal to 2 in n In letter system, have occurred failure active RF hardware cell will the quality to the signal provided at RF outgoing route generate it is negative Face is rung, which will provide at RF outgoing route of the n equal to 8 than the active RF hardware cell of failure has occurred Signal quality generate influence it is big.Because each RF input signal is separated into the two of RF input signal when n is equal to 2 A copy, and the loss of one of them active RF hardware cell will affect the copy of the half of each RF input signal.However, When n is equal to 8, each RF input signal is separated into 8 copies, and the loss of one of them active RF hardware cell can shadow Ring the eighth copy in each RF input signal.
As described above, in some instances, at least one RF separator can be used to implement m × n input network 302, And/or at least one RF combiner can be used to implement m × n output matrix.Fig. 5 is shown to be shown for the another of communication system Example redundancy structure 500.Specifically, Fig. 5 show with 502, two active RF hardware cells 504 of RF demultiplexer and The example redundancy structure 500 of RF signal combiner 506.
The two RF input signals provided at two input ports 508 are respectively coupled to two by RF demultiplexer 502 A active RF hardware cell 504.Specifically, RF demultiplexer 502 is defeated by the first RF for being designated as " RF signal 1 " in Fig. 5 Entering Signal separator and reducing RF signal and the second power at the first power reduces RF signal, and the second power reduces RF signal relative to the One power reduces RF signal phase and deviates 90 degree.Then the first power reduction RF signal is supplied in Fig. 5 and is marked as that " RF is hard The active RF hardware cell of the first of part 1 ", and then the second power reduction RF signal is supplied in Fig. 5 and is marked as that " RF is hard The active RF hardware cell of the second of part 2 ".Similarly, RF demultiplexer 502 by be designated as in Fig. 5 " RF signal 2 " second RF input signal, which is separated into third power, reduces RF signal and the 4th power reduction RF signal, and it is opposite that the 4th power reduces RF signal RF signal phase, which is reduced, in third power deviates 90 degree.Then third power reduction RF signal is supplied to the second active RF hardware Unit, and the 4th power reduction RF signal is then supplied to the second active RF hardware cell.
Then RF signal combiner 506 will by two active RF hardware cells 504 treated signal is attached to two it is defeated Exit port 510.Specifically, handling the first power in the first active RF hardware cell reduces RF signal and third power reduction RF letter After number, RF signal combiner 506 by the first active RF Signal separator at the first authentic copy and triplicate, triplicate relative to 90 degree of first authentic copy phase offset.Similarly, third power is reduced RF Signal separator into the first authentic copy by RF signal combiner 506 And triplicate, triplicate is relative to 90 degree of first authentic copy phase offset.Further, at the second active RF hardware cell After managing the second power reduction RF signal and the 4th power reduction RF signal, the second power is reduced RF by RF signal combiner 506 Signal separator reduces RF Signal separator into two copies at two copies, and by the 4th power.
Since RF demultiplexer 502 and RF signal combiner 506 implement phase offset, so in two output ports The copy phase difference relative to each other of " the RF signal 1 " provided at the first output port in 510 is 180 degree, therefore, can be with Effectively cancel out each other.On the other hand, " the RF signal 1 " provided at the second output terminal mouth in two output ports 510 The phase of copy is identical, and can constructively be combined.Further, it is provided at the first output port The phase of the copy of " RF signal 2 " is identical, and can constructively be combined, however mentions at second output terminal mouth The phase difference of the copy of " the RF signal 2 " that supplies relative to each other is 180 degree, therefore, can effectively be cancelled out each other.
The amplitude of signal shown in output port 510 can be different in Fig. 5, depend on by two active RF hardware cells The 504 processing types executed.For example, active RF hardware cell 504 may include amplifier, amplifier amplification is by RF signal point From the RF signal that device 502 exports, thus the amplitude for the signal that amplification provides at output port 510.
In some instances, input matrix implementing Fig. 3 and m × n input network 302 of Fig. 4 can be used, and/or use N × m of output matrix implementing Fig. 3 and Fig. 4 export network 306.Fig. 6 A and 6B illustrate superfluous for another example of communication system Remaining framework 600.Specifically, Fig. 6 A and Fig. 6 B is illustrated with 602, four active RF hardware cells 604 of input matrix and defeated The example redundancy structure 600 of matrix 606 out.
Input matrix 602 is that the four RF input signals provided at four input ports 608 are respectively coupled to four 4 × 4 butler matrixs (Butler matrix) of active RF hardware cell.For the ease of explaining, only being shown in Fig. 6 A and Fig. 6 B It is appointed as the signal RF input signal of " RF signal 1 ".As shown in Figure 6A, input matrix 602 includes 4 RF demultiplexers, They are arranged such that " RF1 " is separated into 4 function being respectively provided at 4 active RF hardware cells by input matrix 602 Rate reduces RF signal.
Output matrix 606 is 4 × 4 butler matrixs of the inverse matrix of input matrix 602.Output matrix 606 will be had by 4 Treated that RF signal is attached to 4 output ports 610 for source RF hardware cell 604.As shown in Figure 6B, output matrix 606 includes Four RF signal combiners, they are arranged such that output matrix 606 proceeds as follows: (i) will be hard by the first active RF Four power provided at the first output port in Cheng Si output port of Signal separator 610 after part cell processing reduce RF signal, (ii) will be by second in the second active RF hardware cell treated Cheng Si output port of Signal separator 610 Four power provided at output port reduce RF signal, and (iii) will be by the active RF hardware cell of third treated signal point Four power provided at third output port in from Cheng Si output port 610 reduce RF signal, and (iv) will be by the 4th Four provided at the 4th output port in active RF hardware cell treated Cheng Si output port of Signal separator 610 Power reduces RF signal.
By the phase offset that input matrix 602 and output matrix 606 are implemented, in four output ports 610 One, second and third output port at the copy of " RF signal 1 " that provides cancel out each other, and in four output ports 610 The 4th output port at provide " RF signal 1 " copy phase having the same and constructively combined.
The redundancy structure 600 shown in Fig. 6 A and Fig. 6 B is, it is apparent that a for example, if active RF hardware cell Break down and do not export any RF signal, then the amplitude of the signal provided at the 4th output port will due to four/ The loss of one RF hardware and reduce, this can introduce amplitude reduce and phase alignment error.
Further, if an active RF hardware cell breaks down, the copy of another RF input signal is (such as " the RF signal 2 " (not shown) provided at the 4th output port) it may cannot be completely eliminated.However, the copy of " RF signal 2 " The amplitude of summation will be lower.Assuming that A1Equal to A2, then the amplitude of the copy summation of " RF signal 2 " will be relatively shorter than " RF signal The amplitude of 1 " copy summation.Therefore, it by using signal processing, can be supported from the RF signal provided at the 4th output port Disappear the copy summation of " RF signal 2 ".
The amplitude of signal in Fig. 6 shown in output port 610 can be different, depends on by four active RF hardware The processing type that unit 604 executes.For example, this four active RF hardware cells 604 may include amplifier, these amplifiers are put The RF signal exported by input matrix 602 greatly, thus the amplitude for the signal that amplification provides at output port 510.
Fig. 7 shows another example redundancy structure 700 for communication system.As shown in fig. 7, example redundancy structure 700 Including m × n input matrix 702, n active RF hardware cells 704 and n × m output matrix 706.
The m RF input signal provided at m input port 708 is respectively coupled to n by m × n input matrix 702 to be had Source RF hardware cell 704.For the ease of explaining, merely illustrating the signal RF input signal for being appointed as " RF signal 1 " in Fig. 7.Such as Shown in Fig. 7, m × n input matrix 702 may include multiple RF demultiplexers, they are arranged such that: m × n input matrix " RF signal 1 " is separated into the n power provided at n active RF hardware cells 704 by 702 respectively reduces RF signal.
N × m output matrix 706 is the inverse matrix of m × n input matrix 702.N × m output matrix 706 will be by n active RF Treated that RF signal is attached to m output port 710 for hardware cell 704.As shown in fig. 7, n × m output matrix 706 can wrap Multiple RF signal combiners are included, they are configured such that by n active RF hardware cells 704 treated RF input signal It is separated into copy, and is provided for being combined at m output port 710.
Fig. 8 illustrates the example of satellite communication system 800.As shown in figure 8, satellite communication system 800 includes that communication is effective Load 820.Traffic payloads 820 include redundancy structure 830 in turn.Redundancy structure includes that m × n input network 832, n have Source low-noise amplifier 834 and n × m export network 836.M × n inputs network 832 can be according to described herein any defeated Enter network and is configured (m × n input network 302 of such as Fig. 3 and Fig. 4 or the input matrix 602 of Fig. 6 A).N × m exports network 836 can be configured (n × m output the network 306 or Fig. 6 B of such as Fig. 3 and Fig. 4 according to any output network described herein Output matrix 606).
It is to propose for purposes of illustration and description to the different explanations favorably arranged, it is not exhaustive, It is not limited to the example of disclosed form.After refering to the disclosure above-mentioned with understanding, for those of ordinary skill in the art For, many modifications and variations will be apparent.Further, compared with other examples, different examples may provide difference Advantage.It chooses and describes selected example or multiple examples are and makes this field to best explain principle, practical application Other those of ordinary skill it will be appreciated that having carried out the various exemplary of various modifications to be suitble to contemplated special-purpose It is open.

Claims (17)

1. a kind of redundancy structure for communication system, the redundancy structure include:
Multiple active radio frequency RF hardware cells of parallel arrangement;
One or more RF demultiplexers, one or more of RF demultiplexers are configured as multiple RF input signals It is attached to the multiple active RF hardware cell, wherein one or more of RF demultiplexers are configured as:
Each RF input signal in the multiple RF input signal is separated into multiple copies of RF input signal, and
Each copy in the multiple copy of the RF input signal is supplied in the multiple active RF hardware cell Different active RF hardware cells;And
One or more RF signal combiners, one or more of RF signal combiners are configured as by the multiple active Treated that RF signal is attached to multiple RF outgoing routes for RF hardware cell, wherein for by the multiple active RF hardware list Each RF input signal in member treated multiple RF input signals, one or more of RF signal combiners are configured Are as follows:
The multiple copy of the RF input signal is combined in RF output signal, and
At the RF outgoing route corresponding to the RF input signal in the multiple RF outgoing route, the RF output is provided Signal.
2. redundancy structure according to claim 1, the redundancy structure is configured such that the multiple active RF hardware The failure that any one of unit gives active RF hardware cell causes distributed signal to be decayed, rather than causes in signal It is disconnected.
3. redundancy structure according to claim 1, the redundancy structure is configured such that hard in the multiple active RF When any one or more of part unit gives active RF hardware cell and breaks down, the redundancy structure is still in the RF All RF output signals are provided at outgoing route, without cutting spare RF hardware cell.
4. redundancy structure according to claim 1, wherein one or more of RF demultiplexers include having m The input network of input and n output, wherein each output of the input network is attached to the multiple active RF hardware list Different active RF hardware cells in member.
5. redundancy structure according to claim 4:
Wherein, each RF input signal in the multiple RF input signal is mutually orthogonally by the input network, and
Wherein, each provided RF output signal is mutually orthogonal.
6. redundancy structure according to claim 4, wherein one or more of RF signal combiners include having n The output network of input and m output, wherein each input of the output network is attached to the multiple active RF hardware list Different active RF hardware cells in member.
7. redundancy structure according to claim 1, wherein RF input signal is separated into the multiple of the RF input signal The processing of copy includes separating the RF input signal are as follows: the first power reduces RF signal, which reduces RF signal Phase it is identical as the phase of the RF input signal;RF signal is reduced with the second power, which reduces RF signal Phase is different from the phase of the RF input signal.
8. redundancy structure according to claim 1, wherein the RF input signal in the multiple RF input signal is same Band operation.
9. redundancy structure according to claim 8, wherein the communication system is the traffic payloads of satellite.
10. redundancy structure according to claim 9, wherein the multiple active RF hardware cell includes multiple low noises Amplifier.
11. a kind of redundancy structure for communication system, the redundancy structure include:
A series of input ports;
A series of output ports;
Multiple active radio frequency RF hardware cells of parallel arrangement;
A series of input ports are connected to institute by least one RF demultiplexer, at least one described RF demultiplexer State multiple active RF hardware cells;And
At least one RF signal combiner, at least one described RF signal combiner connect the multiple active RF hardware cell A series of extremely output ports,
Wherein, the redundancy structure is configured such that at any given input port in a series of input ports The RF input signal of offer is separated into multiple copies of RF input signal, and the multiple copy is then by the multiple active RF Corresponding active RF hardware cell processing in hardware cell, and after being processed, the multiple copy is described a series of RF output signal is combined at given output port in output port.
12. redundancy structure according to claim 11, the redundancy structure is configured such that the multiple active RF is hard The failure that any one of part unit gives active RF hardware cell reduces the quality of the RF output signal, but does not cause The signal interruption of the RF output signal.
13. redundancy structure according to claim 11, the redundancy structure is configured such that in the multiple active RF When any one or more of hardware cell gives active RF hardware cell and breaks down, the redundancy structure is still given The RF output signal is provided at outgoing route, without cutting spare RF hardware cell.
14. redundancy structure according to claim 11, wherein at least one described RF demultiplexer includes having m The input network of input and n output, wherein each output of the input network is attached to the multiple active RF hardware list Different active RF hardware cells in member.
15. redundancy structure according to claim 14, wherein at least one described RF signal combiner includes having n The output network of input and m output, wherein each input of the output network is attached to the multiple active RF hardware list Different active RF hardware cells in member.
16. a kind of redundancy structure for communication system, the redundancy structure include:
M input port;
M output port;
N active radio frequency RF hardware cell of parallel arrangement;
The m input port is connected to the n active RF hardware lists by m × n input matrix, m × n input matrix Member;And
The n active RF hardware cells are connected to the m output end by n × m output matrix, n × m output matrix Mouthful,
Wherein, the redundancy structure is configured such that at any given input port in the m input port and provides RF input signal be separated into n copy of the RF input signal, the n copy is then hard by the n active RF Corresponding active RF hardware cell processing in part unit, and after being processed, the n copy is in the m output end RF output signal is combined at given output port in mouthful.
17. redundancy structure according to claim 16, wherein the redundancy structure does not include any wait cut the redundancy Alternate hardware unit in framework.
CN201910007992.3A 2018-01-22 2019-01-04 Reliably, non-maintaining RF hardware framework Pending CN110071740A (en)

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CN101252714A (en) * 2008-03-27 2008-08-27 桂林市思奇通信设备有限公司 Base station carrier wave distributor and communication network composed thereof

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Application publication date: 20190730